Cranking pressure on competition 4v engines
Discussion
Pumaracing said:
Max_Torque said:
I think Pumas been having a wee dram a little earlier than usual today....... ;-)
There's nae sich thing as too early fae a dram. It starts the day aff just fine and fortifies the spirit.Dynamic CR and Cranking Compression (PSI) are very closely related.
From bore, stroke, rod length, static CR and cranking PSI you should be able to calculate both DCR and IVC @ the valve.
I like to use IVC @ the valve because lash changes will change IVC and this will cause your PSI to change.
If you can also include air density changes to see what happens to psi.
Stan
From bore, stroke, rod length, static CR and cranking PSI you should be able to calculate both DCR and IVC @ the valve.
I like to use IVC @ the valve because lash changes will change IVC and this will cause your PSI to change.
If you can also include air density changes to see what happens to psi.
Stan
Gassing Station | Engines & Drivetrain | Top of Page | What's New | My Stuff